Security readout for executives and security teams
Plain-English summary
CVE-2022-20346 is an Android media parsing flaw that may let a remote attacker disclose information when a device processes crafted MPEG-4 audio metadata. The issue affects Android 10, 11, 12, and 12L. The CVE description says user interaction is needed, so risk depends on exposed media-handling paths and user behavior.
Executive priority
Treat this as a high-priority mobile patching issue, especially for fleets with older Android versions. The likely business risk is confidentiality loss from vulnerable media parsing, not device takeover based on the provided evidence.
Technical view
Android MPEG4Extractor.cpp contains an out-of-bounds read in updateAudioTrackInfoFromESDS_MPEG4Audio caused by an incorrect bounds check. The reported impact is remote information disclosure without additional execution privileges. The bundle lists CWE-125 and CVSS 3.1 score 7.5, though the narrative says user interaction is needed while the vector lists UI:N.
Likely exposure
Organizations are exposed where Android 10, 11, 12, or 12L devices have not received vendor security updates covering the August 2022 Android bulletin. Exposure is most relevant on devices that process untrusted media content.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not listed as KEV in the bundle. The description supports remote information disclosure, but does not provide exploit maturity, public proof-of-concept status, or detailed attack delivery evidence.
Researcher notes
Focus validation on Android media framework patch state and OEM build lineage. The source bundle does not identify affected OEM firmware variants, public exploit details, or standalone mitigations. Note the inconsistency between the CVE narrative requiring user interaction and the supplied CVSS vector showing UI:N.
Mitigation direction
- Apply Android security updates that include CVE-2022-20346 fixes.
- Confirm OEM patch availability for all managed Android 10 through 12L devices.
- Prioritize devices handling untrusted media from messaging, browsing, or file-sharing workflows.
- Restrict untrusted media intake where patching is delayed.
- Track vendor guidance rather than assuming generic mitigations are sufficient.
Validation and detection
- Inventory Android versions across managed mobile and embedded devices.
- Check device security patch levels against vendor guidance for CVE-2022-20346.
- Verify affected devices received updates tied to the August 2022 Android bulletin.
- Review MDM compliance reports for Android 10, 11, 12, and 12L laggards.
- Document any unsupported devices requiring replacement or compensating controls.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-125: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-20346 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/2022-08-01CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.